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Offline xavier
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« Reply #50 on: June 12, 2015, 03:47:23 am »
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 Grin  Grin I know someone that's going to be having some fun

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So many questions so little time
Offline gtdavidTopic starter
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« Reply #51 on: June 12, 2015, 04:54:28 am »
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 Yep Great.
My programing all started in Linux.
Having  all that power enables me to program right on the device its self I have a 3.2" lcd on the way with it also.
And it has a hdmi output so I can connect it to a large lcd for programing .
Just scrolling threw the web to find a nice and fast adc that uses spi or i2c.
Any ideas?
I have also acquired some 12v digital pots that have logic level shifters built in!.
All comming together.  
One thing I MUST do is work out some input voltage protection for the adc.


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Whites 6000di Series 2
« Reply #52 on: June 12, 2015, 07:10:35 am »
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I was talking to one of my friends about designing and building a metal detector. He mentioned he built a signal generator. I think he said he was using a PCF8591.
I read some on it and you could sweep the frequency form 0 to 400k hz. Hope I got the IC correct.

Here are some links I found:

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http://www.picmicrolab.com/function-generator/


This one downloads the pdf spec file.

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www.nxp.com/documents/data_sheet/PCF8591.pdf


Hope this helps.

Mike

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Offline xavier
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« Reply #53 on: June 12, 2015, 07:48:45 am »
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Quote:Posted by gtdavid
Yep Great.
My programing all started in Linux.
Having  all that power enables me to program right on the device its self I have a 3.2" lcd on the way with it also.
And it has a hdmi output so I can connect it to a large lcd for programing .
Just scrolling threw the web to find a nice and fast adc that uses spi or i2c.
Any ideas?
I have also acquired some 12v digital pots that have logic level shifters built in!.
All comming together.  
One thing I MUST do is work out some input voltage protection for the adc.

I normally just use a 10K resistor on the adc if I use it as a switch I place one on the ground and one on the push button high side, you could even use a 100K


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So many questions so little time
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« Reply #54 on: August 29, 2015, 05:25:36 pm »
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Is there a difinitive tutorial on pic programming, including any hardware requirements?

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